Pimelea cremnophila

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Pimelea cremnophila
Pimelea cremnophila.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Thymelaeaceae
Genus: Pimelea
Species:
P. cremnophila
Binomial name
Pimelea cremnophila
Habit in the Australian National Botanic Gardens Pimelea cremnophila habit.jpg
Habit in the Australian National Botanic Gardens

Pimelea cremnophila, commonly known as gorge rice-flower, [2] is a species of flowering plant in the family Thymelaeaceae and is endemic to a restricted area of New South Wales. It is an erect shrub with narrowly elliptic to narrowly egg-shaped leaves arranged in opposite pairs, and groups of up to four flowers that are sometimes male-only or female-only.

Contents

Description

Pimelea cremnophila is an erect shrub that typically grows to a height of up to 2.5 m (8 ft 2 in) and has reddish-brown stems, covered with bristly hairs when young. Its leaves are narrowly elliptic to narrowly egg-shaped, 10–37 mm (0.39–1.46 in) long and 2.5–6 mm (0.098–0.236 in) wide on a densely hairy petiole about 1 mm (0.039 in) long. The flowers are borne on the ends of branches or in leaf axils, singly or in groups of up to four on a peduncle about 1 mm (0.039 in) long. There are leaf like bracts 2.5–5 mm (0.098–0.197 in) long at the base of the flowers but that fall off as the flowers develop. Some flowers are functionally male, others functionally female and the remainder bisexual. Bisexual flowers have a floral tube 4.0–6.5 mm (0.16–0.26 in) long and sepals 3–4 mm (0.12–0.16 in) long, male flowers a longer floral tube, and female flowers a shorter floral tube and smaller sepals. Flowering has been observed in October, but is likely to occur throughout spring. [2] [3] [4]

Taxonomy

Pimelea cremnophila was first formally described in 2006 by Lachlan Copeland and Ian Telford from specimens collected in the Oxley Wild Rivers National Park in 2004. [3] [5] The specific epithet (cremnophila) means "cliff-loving". [3]

Distribution and habitat

Gorge rice-flower grows on exposed cliff-tops and sheltered cliff-sides at altitudes between 1,050 and 1,090 m (3,440 and 3,580 ft) in the southern part of the Oxley Wild Rivers National Park. [2] [3] [4]

Conservation status

At the time of writing their paper, Copeland and Telford reported that P. cremniphila was "known from fewer than 100 individuals". In 2015, a visit by Copeland to the area failed to find two of the three populations. The main threats to the species are grazing by feral goats, drought and inappropriate fire regimes. The species is listed as "critically endangered" under the New South Wales Government Biodiversity Conservation Act 2016 . [2] [6]

Related Research Articles

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Pimelea physodes, commonly known as Qualup bell, is a species of shrub that is endemic to Western Australia. It has egg-shaped to narrow elliptical leaves and distinctive bell-like inflorescences with tiny greenish flowers surrounded by long elliptical bracts. The inflorescence resembles those of some of the only distantly-related darwinia "bells" and the bracts are a combination of red, purple, green and cream-coloured.

<i>Pimelea alpina</i> Species of shrub

Pimelea alpina, the alpine rice-flower, is a species of flowering plant in the family Thymelaeaceae and is endemic to south-eastern continental Australia. It is an erect, prostrate or spreading shrub or undershrub with narrowly elliptic leaves crowded at the ends of branches and heads of pinkish red or white flowers.

<i>Pimelea calcicola</i> Species of shrub

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<i>Pimelea congesta</i> Species of flowering plant

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<i>Pimelea ciliolaris</i> Species of shrub

Pimelea ciliolaris is a species of flowering plant in the family Thymelaeaceae and is endemic to a restricted area of New South Wales. It is a stunted shrub with narrowly elliptic leaves and heads of densely hairy, cream-coloured to pale yellow flowers.

<i>Pimelea treyvaudii</i> Species of shrub

Pimelea treyvaudii, commonly known as grey rice-flower, is a species of shrub in the family Thymelaeaceae. It has white flowers in spherical heads at the end of branches and is endemic to eastern Australia.

Pimelea pagophila, commonly known as the Grampians rice-flower, is a species of shrub in the family Thymelaeaceae. It has a restricted distribution, white flowers in spherical heads at the end of branches, green leaves arranged in opposite pairs and is endemic to Victoria, Australia.

<i>Pimelea aeruginosa</i> Species of shrub

Pimelea aeruginosa is a species of small shrub in the family Thymelaeaceae. It is a small shrub with yellow flowers and is endemic to Western Australia.

<i>Pimelea ammocharis</i> Species of shrub

Pimelea ammocharis is a species of small shrub in the family Thymelaeaceae. It is a small shrub with white-yellow to orange flowers and is endemic to Western Australia.

<i>Pimelea ciliata</i> Species of flowering plant

Pimelea ciliata, commonly known as white banjine, is a species of flowering plant in the family Thymelaeaceae. It is a small shrub with white flowers and is endemic to Western Australia.

<i>Pimelea altior</i> Species of shrub

Pimelea altior is a species of flowering plant in the family Thymelaeaceae and is endemic to eastern Australia. It is a shrub with elliptic leaves and heads of white, tube-shaped flowers.

<i>Pimelea amabilis</i> Species of shrub

Pimelea amabilis is a species of flowering plant in the family Thymelaeaceae and is endemic to northern Queensland. It is a small shrub with narrowly elliptic or elliptic leaves and spikes of hairy, yellowy-green or yellow, tube-shaped flowers.

Pimelea aquilonia is a species of flowering plant in the family Thymelaeaceae and is endemic to far north Queensland. It is a shrub with narrowly elliptic leaves and small clusters of hairy, white or cream-coloured, tube-shaped flowers.

<i>Pimelea argentea</i> Species of shrub

Pimelea argentea, commonly known as silvery leaved pimelea, is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of Western Australia. It is an erect shrub with densely hairy young stems and leaves, the leaves linear to elliptic, and heads of white to yellow or greenish flowers, the male and female flowers on separate plants.

<i>Pimelea avonensis</i> Species of shrub

Pimelea avonensis is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of Western Australia. It is a shrub with narrowly egg-shaped or elliptic leaves and clusters of white, tube-shaped flowers.

<i>Pimelea bracteata</i> Species of shrub

Pimelea bracteata, is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of New South Wales. It is a shrub with narrowly egg-shaped to elliptic leaves and pendulous, pale green heads of pale yellow flowers.

Pimelea brevifolia is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of Western Australia. It is an undershrub or shrub with erect, elliptic leaves, and heads of white flowers surrounded by four involucral bracts.

<i>Pimelea brevistyla</i> Species of shrub

Pimelea brevistyla is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of Western Australia. It is a shrub with narrowly egg-shaped leaves arranged in opposite pairs, and head-like racemes of white, tube-shaped flowers surrounded by yellowish involucral bracts.

Pimelea concreta is a species of flowering plant in the family Thymelaeaceae and is native to northern Australia and parts of Indonesia. It is an annual herb with narrowly egg-shaped leaves and head-like clusters of white or pink, tube-shaped flowers surrounded by egg-shaped green involucral bracts.

<i>Pimelea cracens</i> Species of flowering plant

Pimelea cracens is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is an erect, spindly shrub with narrowly elliptic to egg-shaped leaves and creamy green to pale yellow flowers surrounded by 6 or 8 yellowish or pale green and reddish involucral bracts.

References

  1. ↑ "Pimelea cremnophila". Australian Plant Census. Retrieved 17 October 2022.
  2. 1 2 3 4 "Gorge rice-flower". New South Wales Government Office of Environment and Heritage. Retrieved 17 October 2022.
  3. 1 2 3 4 Copeland, Lachlan M.; Telford, Ian R. (2006). "Pimelea cremnophila (Thymelaeaceae), a new species from the New England Tablelands escarpment of northern New South Wales". Telopea. 11 (2): 111–115. Retrieved 17 October 2022.
  4. 1 2 Murray, Louisa. "Pimelea cremnophila". Royal Botanic Garden Sydny. Retrieved 17 October 2022.
  5. ↑ "Pimelea cremnophila". APNI. Retrieved 17 October 2022.
  6. ↑ "Conservation advice - Pimelea cremnophila" (PDF). Australian Government Department of Climate Change, Energy, Water and the Environment. Retrieved 17 October 2022.
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